Molding-machine.



No. 793,860. PATENTED JULY 4, 1905. H. TSCHERIIING.

MOLDING MACHINE.

APPLICATION FILED SEPT.5. 1903.

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No. "793,860. PATENTED JULY 4, 1905. H. TSCHERNING.

MOLDING MACHINE.

APPLIOATION FILED sxmaa, 1903.

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H. TSGHBRNING.

MOLDING MACHINE.

APPLIOATION FILED SEPT. 5, 1903.

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PATENTED JULY 4:, 1905. H. TSGHERNING. MOLDING MACHINE.

APPLICATION FILED 531915, 1903.

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n n I A No. 793,860 PATENTED JULY 1, 1905. H. TSCHERNING.

MOLDING MACHINE.

APPLICATION FILED BBPT.5, 1903 8 SHBETS-SHEET 5.

No. 793,860. I IPAT'ENTED JULY 4, 1905. H. TSGHERNING. MOLDING MACHINE.APPLICATION FILED SEPT, 6, 1903.

s SHEETSSHEET EEC? Z0 PATENTED JULY 4, 1905.

H. TSOHERNING. MOLDING MACHINE.

APPLIOATION FILED saws, 1903.

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PATENTED JULY 4-, 1905.

H. TSOHERNING. MOLDING MACHINE.

APPLICATION FILED snma, 1903.

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iarrien Straits Patented July 4, 1905.

HENRY TSUllEi-tiiihiii, ()F FitElCPOlt'i, lliiiJlNO it, Assumes TOARCADE lVIANUFAU'lUltlNi.i UOil/llitNY, OF l ltlifiEPORl, lLLlNOlS, ACORPORA- TION ()F lLLlNOlF.

iiVlULDiNQ -WMMZWHNE.

SPECIFICATION formingpart of Letters Patent No. 793,860, dated July 4,1905. Application filed September 5, 1903. Serial No. 172,099.

To (I /Z 107mm fl; 7114/ ('o/treer/t:

Be it known that I, I'linNnv lsouui-zN[No, a citizen of the UnitedStates of America. residing at l reeport, in the county of Stephensonand State of lllinois, have invented certain new and usefulImproven'ients in Molding-Machines,of which the following is aspeciiication.

My invention relates to certain new and useful in'iprovements inmoldingmachines. its object is to produce a device of this class whichshall operate successfully and which shall be easy to manipulate andquick in operation.

To these ends my invention consists in certain novel features ofoperation and construction, which will be clearly shown in theaccompanying drawings and described in this speciiicatioz'l.

1n the drawings, Figure l is a side view of the complete machine, theoperating parts being in their normal position-that is, the two halvesofthe flask having been placed upon the match-plate. Fig. 2 is a plan viewthereof. Fig. 3 is a vertical cross-section through the head, showingthe flasks filled with sand, the cope and bottom boards having beenplaced thereon, the line oi section being indicated in. line 3 3 of Fig.2. Fig. i: is a plan view of the head as itappears when inverted. Fig. 5is a front view of the machine. Fig. 6 is a vertical cross-section takenin the line 6 6 of Fig. 5, the flasks having been iilled with sand andthe cope and bottom boards put in place and clamped thereon. Fig. 7 is avertical cross-section in the line 7 7 of Fig. 5, but showing the partsin the position in which the sand has been compressed. Fig. 8 is avertical cross-section taken in the line 8 8 of Fig. 5. Fig. 9 is asection of the lower portion of the machine, similar to Fig. 7, butshowing the platform moved out. Fig. 10 is a view, partly in plan andpartly in horizontal section, the line of section being indicated inline 10 10 of Fig. 5. Fig. .11 is a detail horizontal section taken inthe line 11 ll of Fig. 7. Fig. 12 is a similar section in the line 12 12of Fig. 7. Fig. 13 is a perspective view of the platform. Fig. 1a is asimilar view of a carriage used to move said platform.

Fig. 15 is a similar view of a frame which supports said.

carriage and platform. Fig. '16 is a detail vertical section through oneof the tracks of the platform, carriage, and frame in the line '16 16 ofFig. 10. Fig. 17 is a plan view of the head-casting. Fig. 18 is an endview thereof. Fig. 11.9 is a detail vertical cross-section of a latchfor securing the head in certain positions, the line of section beingindicated in line l9 l9 oi Fig. 2. Fig. 20 is a perspective view of alever adapted to lock the clamping device on the cope and bottom boards,and Fig. 21 is a perspective view of said clamping device and itssupporting members.

.lieierring to the drawings, A is a suitable base, composed of two sidepieces A and a transverse bar N. The side pieces A terminate at theirforward ends in legs a and are supported at their rear ends by wheels a,mounted on short shafts a. This structure is such that the machine isnormally seated upon two legs and two wheels, so that it is comiaratively iirm in position; but when it is desirable to move it fromplace to place it can be wheeled around by lifting the logs from theground. Four vertical rods B extend upward from the base A, two of therods being supported upon each side piece. The upper ends of these rodsare braced and spaced apart by bars B, one situated upon each side ofthe machine. Between each pair of rods is guided a cross-head 0, each ofthe cross-heads (,1 being vertically reciprocable. To each of thecross-heads is pivotally secured a link U, the opposite end of which ispivoted to an arm C, the two arms if being rigidly secured to theopposite end of a rock-shaft G", journaled in the base of the machine.To one end of the shaft C secured a hand-leverU", by which the shaft canbe rocked. i Vhen this lever is swung forward from the position shown inFig. i, it will be evident that the cross-heads will be drawn down therods ii toward the base oi. the machine, and as the lever is returned tothe position shown in Fig. 1 the cross-heads will be moved back to theiroriginal position. A. catch 0, operated by a i small lever c, secured tothe hand-lever (his i provided, wherewith the lever can be locked in theposition shown in Fig. 1, the catch engaging a lug upon the bar B. Toeach of the cross-heads adjacent to the point of connection of the linksC is pivoted an arm I), bearing at the end a weight 1]. Each arm D issupported midway its length by a link D, which hangs from the bars B,supported by the upper ends of the rods B. The purpose of this weight isto counterbalance the weight of the cross-heads and the weight of theparts carried thereby, which will presently be described, the weightmoving upward as the cross-heads are lowered from the position shown inFig. 6 to the position shown in Fig. 7. It is to be observed that thefront rods B are movable backward and forward upon the machine to acertain extent at their lower ends, the lower ends being mounted for thepurpose in boxes Z), Fig. 11, the boxes being secured to the base of themachine by bolts 7), running in slots provided in the base. The purposeof this adjustment is to permit the rods B to be moved and kept in closeadjustment, as the cross heads and rods which guide them become worn'from use. No adjustment is provided at the upper end of the rods, andnone is necessary, as it is not particularly material whether there is aslight looseness when the cross-head is in its upper position or not;but it is very desirable that a guide be provided near the bottom of themovement of the cross-head.

In the two cross-heads isjournaled a head E. (Shown in plan in Fig. 17.)The head consists of an open rectangular frame 1/, having gudgoons a atits opposite ends, said gudgeons being journaled in the cross-heads. Tothe upper side of this frame are secured two matchplates F F, Figs. 2and 3, each of which bears upon it in relief one-half of the patternwhich is to form the completed mold. The plate F forms the mold in thedrag, and the plate F forms the mold in the cope. The plate F isprovided with holes 7", and the plate F is provided with pins f, (seedotted lines, Fig. 5,) which are adapted to engage with thecorresponding pins upon the drag and perforations in the cope. In theuse of the machine the two flasks are placed upon the correspondingmatch-plates, with the parts in the position shown in Fig. The flasksare then shoveled full of sand and leveled in at the top. Boards F FFig. 3, are placed upon the sand in the flasks and clamped in place bymechanism which will presently be described. It is to be noted that thepattern upon the matchplate F is provided with a pin f adapted to formthe sprue-hole in the sand, and the board F, which covers the flask uponthis matchplate, is provided with a corresponding perforation f and witha conical bead f, surrounding the perforation. By this means asprue-hole with the proper tapered opening is provided in the mold,through which the molten metal is poured.

; hooks. hand from the position shown in Fig. 5 to a handle G Fig. 8.

i hold the handle G up.

On the lower side of the frame of the head E are downwardly-prejectingslotted cars 7 Fig. through which extend. rods G. Pins 1/ limit thedownward movement of the rods G in the slots of the ears At the ends ofthe rods G are secured bearing-blocks g, Fig. a, in which are hinged tworods G, to which are clamped arms g", Fi 21, bearing at their ends flatblades g, thus forming clamping- These arms r can be swung up by thatshown in Fig. 6, wherein the blades 7 lie above the upper edges of theboards F F and tend to hold the same in place. A shaft G Fig. 4:, isjournaled in the lower side of the frame L and is provided at one endwith A pin 17"", Fig. 20, projecting rigidly from this shaft, engageswith one of the rods G and forces it down so as to bring the blades ginto close clamping contact with the boards. A spring-catch g, (see Fig.5,) secured to the frame (2, is adapted to The pin 9 as the shaft (5? isrotated eventuallycomes into a position at right angles to the rodsG,and consequently locks itself in position. hen this position has beenreached, a spring-pressed pin H, (see Figs. 2 and 19,) mounted upon oneof the crossheads C, is withdrawn by means of a leverll from itsengagement with a perforation 72. in the end of the head E, and the headis then completely inverted upon its hearings in the cross-head, the pinH falling back into another hole provided upon the opposite side of thegudgeon, the head being thereby locked in a horizontal position. Theweight of the sand and flasks lying upon the blades g holds them lirmlyin position, although their normal v tendency is to swing out to theposition shown in Fig. 7 after the frame is inverted. This tendency iscaused by the engagement of weights G, Figs. *1 and 7, mounted upon armssuitably pivoted upon the frame E, with projecting pins g" upon thehinged rods (1. These weights fall into engagement with the pins whenthe head is inverted, but are out of engagement therewith when it is inthe position occupied when the flasks are being filled. 1n this way ayielding pressure tending to unclamp the flasks is provided, operatingonly when the head is in an inverted position and when the weight of theflasks and their contents is sutlicient to keep the parts in place. Thehead having been inverted, the lever C" is swung forward, drawing thehead from the position shown in Fig. 6 to that shown in Fig. 7 andbringing the boards F F in contact with a movable table provided toreceive it. These boards are crowded into the flasks by the downwardmovement of the head, and the sand is compressed upon the match plates,forming a perfect mold. When the weight of the flasks and their contentsis removed from the blades g and transferred to the movable table, theseblades swing out under the retrace influence of the weights fir, abovedescribed, thus releasing all the parts. After the compression iscompleted a projecting knob lil upon the lower side of the frame (theupper side in the position shown in Fig. 7) is tapped liglitly to jarthe patterns a little, and the lever U is swung back to its originalposition, raising the head and match-plates and leaving in place the twomolds. The platform upon which the flasks rest is then moved forward tobring the flasks into a convenient position, after which the cope isinverted by hand and placed upon the drag and the upper board l? thereofremoved. This leaves the completed mold.

The moving platform upon which the flasks come to rest and means foroperating it will now be described.

The transverse bar A, Fig. 5, which connccts the two side pieces of thebase of the machine, is perforated to receive two vertical screws l,which are vertically movable and are provided with lock-nuts above andbelow the cross-bar A, by which they can be llXOtl in any desiredposition. Secured to the tops of these screws is a rectangular frame I,(see Fig. 15,) having at its sides tracks 1", the said tracks beingconnected by suitable transverse men1l: ers, preferably integraltherewith. Upon the tracks '1 supported a carria 'e J see Fig. la madein the form of a rectangular frame and provided at the sides withrollers j, running upon the tracks I. At the rear of the carriage J isan ear 7", which is connected by a link j Fig. 6, to an arm J, rigidlysecured to a rock-shaft J", which is journaled in two arms J, secured tothe rectangular frame it. To one end of this shaft is rigidly secured anarm J", lfigs. 1 and 8, which is connected by a link ill with ahandlever J at the front of the machine and pivoted to one of the legsa. It is evident that pulling this lever forward will rotate the shaftJ", and consequently draw the carriage J forward by pull exerted throughthe arm J and link 7'. Upon the top of the carriageJ a platform hf,

(see Fig. 13,) composed of inverted tracks 3 and. suitable cross-piecesupon which the boards which are placed upon the flasks may come to rest.it is evident that as the carriage d is moved forward, as heretoforedescribed, the plalform K will move forward at double the speed,inasmuch as the tracks 7.: run upon the upper surfaces of the rollers j,while the same rollers in turn run upon the statioiun'y tracks Thetracks 17 and K' are pro vided, it will be noted, with notches f A, (seel igs. 7 and 9,respectively,) into which the rollers fall when thecarriage isin its rear position,

so that when sopositioned the tracks A restdirectly upon the tracks if,the rollers having no sustaining effect. vlhen the carriage movesforward, however, the rollersleave thenotches and sustain the weight ofthe carriage and platform, it. it is desirable that the weight beremoved from the rollers at the time when the compression of the sand inthe molds is taking place, and conserpjiently this device is providedfor the purpose. The platform K is extended to the end of the carriage dand frame I by two plates Z, hinged to the tracks A, Figs. (3 to 10.vVhen the platform is moved out, the plates swing down out of the way,Fig. 9. Two rollers l Fig. 1%, are secured to the carriage J by means ofsuitable downwardly-projecting brackets, these rollers running upon theunder side of the tracks 1" of the frame 1 and serving to prevent anytilting of the platform when moved out and supiorting the molds.

The operation of the entire structure should now be readily apparent.Starting in the position shown in big. l, the flasks are placed upon thematch plates, filled with sand, and covered with the proper boards. Theclamping-blades are then swung up over the edges of the boards andlocked in place by swingii'ig down the lever (f. The head is thenreleased by pulling the locking-pin ll out of place, inverted, andlocked in its inverted positioll.

The compression-leverC is then pulled forward, drawing down the head anddriving the boards into the flask, thus releasing the clamping-blades,which swing away from the boards. The sand in the mold is then slightlyjarred, as above described, and the head is raised by moving back thecompression-lever. The platform upon which the boards stand is thenmoved forward by pulling forward the hand -lever J. The cope is invertedand placed upon the drag, the top board is taken off, and theCOtllDlOtGfl mold removed. The table is then returned to its originalposition and the machine is ready for another OPUI'ZI" tion.

I realize that emsiderable variation is possible in the details of thisconstruction without diiparting from the spirit of the invention, and 1therefore do not intend to limit myself to the specific form hereinshown and described.

l claim as new and desire to secure by Letters Patentlnadeviceoftheclassdescribed, thecombination with a suitable base, ahorimntallymovable platform supported thermal to reeeive the flasks andan operatinglevcr having connection with the platform to move the sameforward, of vertical guides extending upward on each side of the base, across-head carried by each of the guides, a head iournaled between thecross-heads, a pattern-plate secured to the head, clamps constructed andarranged to secure a portion of the flask to the head, means forbrii'iging the flask, when secured to the I plate, into forcible contactwith the platfin'm, said clamps being constructed and arranged torelease the flask automatically when brought into such contact,

2. in a device of the classdescribed, the com 4: reseee bination with abase havingasuitable platform thereon, a vertically-guided, reciproeableand rotatable head having a pattern upon one side, and means forreciprocating the same, of a plurality of arms hinged to the head,blades upon the ends of the arms adapted to swing over the edges of abottom board and hold one part of a flask, its contents, and a bottomboard in place upon the head, and means for clamping the blades againstthe bottom board.

3. In a device of the class described, the combination with a basehaving a suitable platform thereon, a vertically-guided, reciprocableand rotatable head having a pattern upon one side, and means forreciprocating the same, of transversely-movable rods secured to thehead, arms hinged to the rods, blades upon the ends of the arms adaptedto swing over the edges of a bottom board and hold one part of a flask,its contents, and a bottom board in place, and a rock-shaftjournaledupon the head and having a pin adapted to come in contact with one ofthe transversely-movable rods to clamp the blades against the bottomboard.

4. In a device of the class described, the com- 1 bination with a basehaving a suitable platform thereon, a vertically-guided, rcciprocableand rotatable head having a pattern upon one side, and means forreciprocatingthe same, of transversely-movable rods secured to thehead,arms hinged to the rods, blades upon the ends of the arms adapted toswing over the edges of a bottom board and hold one part of a flask, itscontents, and a bottom board in place, and

means for moving the transversely-movable rods to clamp the bladesagainst the bottom board.

5. In a device of the class described, the combination with a basehaving a suitable platform thereon, a vertically-guided reciprocable androtatable head having a pattern upon one side, and means forreciprocating the same, of arms hinged to the head, blades upon the endsof the arms adapted to swing over the edges of a bottom board and holdone part of a flask, its contents, and a bottom board in place, and adevice for exerting yielding pressure upon said arms to swing them awayfrom the head only when the side thereof bearing the pattern isdownward.

6. In a device of the class described, the combination with a basehaving a suitable platform thereon, a vertically-guided, reciprocableand rotatable head having a pattern upon one side,

' and means for reciprocating the same, of rods hinged to the head onthe opposite side from the pattern, arms rigidly secured to the rods,blades upon the ends of said arms adapted to swing over the edges of abottom board and hold one part of a flask, its contents, and the bottomboard in place upon the head, a 'pin upon each of said hinged rods andweights adapted to swing against said pins when the head is turned withthe pattern side down, the weights tending to swing the arms away fromthe bottom board.

'7. In a device of the class described, the combination with a suitablebase, a vertically-reciprocable head, and means for reciprocating thesame, of tracks situated upon the base of the machine, a carriage uponthe tracks, a le ver connected with the carriage and adapted to move thesame forward and back upon the tracks, and a platform rolling upon therollcrs of said carriage, whereby the platform is moved simultaneouslywith and at a greater speed than the carriage.

8. In a device ofthe class described, the combination with a suitablebase, a vertically-recipro able head, and means for reciprocating thesame, of suitable tracks upon the base of the machine, a carriagerunning upon the tracks, means for reciprocating the carriage upon thetracks, and a platform running upon the rollers of the carriage when thecarriage is in any but the rearmost position, and when the carriage isin its rearmost position resting upon the tracks.

9. In a device of the class described, the combination with a suitablebase, a vertically-reciprocable head, and means for recirn'ocating thesame, of tracks provided with suitable notches, a carriage provided withsuitable rollers resting in the notches when the carriage is in itsrearmost position, means for reciprocating the carriage, a platformprovided with tracks running upon the rollers of the carriage when therollers thereof are not in the notches, and resting on the tracks uponthe base when the rollers are in the notches.

In witness whereof I have signed the above application for LettersPatent, at Freeport, in the county of Stephenson and State of Illinois,this 26th day of August, A. I). 1903.

HENRY TSOHERWING. lVitnesses:

F. E. BOEDEKER, B. (J. Haunts.

